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- Lab number
- Beta-197188
- Material dated
- Charcoal
- Type of date
- Archaeological
- Locality
- La Plata
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Normalized Age
- 1320 ± 40
- δ13C (per mil)
- -12.0
- Context
- Locus 2, subfeature 18.06 bell-shaped pit in Pit structure F-18, the southernmost pit structure on the ridgetop. Subrectangular (originally excavated by Root in 1966). Root found 4 roof support posts, a Passage way, and 2 sand pits. These were found under a layer of burned roof debris that overlay the plastered floor, suggesting burning at abandonment. Walls also originally plastered, but eroded by the time that SWCA returned to site. SWCA re-excavated the S 1/2. Artifacts (fill) included 1 Rosa/Piedra B/W, 1 plain grayware sherd, and 1 chalcedony proj pt. No floor artifacts found. However, Root mentioned a vessel filled with flakes, ceramic pipe, polished marine shell frags., and a biface (almost like a Cody knive), polishing stones, 2 other vessels, metates and manos at or near floor. The pit structure was excavated 1.2 m into sterile gravels forming highest point on ridge. Inferred meas.: 6.9 x 6.5 m. Two postholes were 3.6 m apart. Probably had a massive roof. A 40- to 50-cm wide bench on at least 2 sides. Root's passage way was probably a ventilator tunnel. Root's ash pits were probably an ash-filled hearth and, possibly, an ash pit. Seven subfeatures: the 2 postholes with post remnants (confirming that structure was abandoned without salvaging posts); adobe wing wall and deflector also present. SWCA found a wall cist (18.04) in NE Zea mayser (2.1 x 2.0 m). The cist had been modified prehistorically to include a small hearth and bell shaped pit (sample for date was derived from the latter). The bell-shaped pit meas. 38 x 32 cm in dia., ca. 20 cm from the hearth. Zea mays cupules, 2 plainware sherds, several other seeds, 1 flake and shatter found in this subfeature. Based on Root's notes, structure was not entirely cleaned out prior to abandonment. Interpreted as a residence with a cist that may have been added after construction (not clear). Since Root did not mention trash overlying layer of burned roof fall, abandonment of feature is thought to coincide with abandonment of ridge top and possibly the site.
- Additional information
- AMS